The Skeie's Difference
Classic Field Style in a Compact 36mm Case
The Seiko 5 Sports SRPJ81 brings classic field-watch styling into a compact, easy-to-wear 36.4mm stainless-steel case. Its clean, highly legible dial, practical day/date display, and automatic movement make it an ideal everyday watch with a distinctly casual Seiko personality.
Powered by Seiko’s proven 4R36 automatic movement, the SRPJ81 offers approximately 41 hours of power reserve along with both automatic and manual winding. A stainless-steel bracelet completes the versatile field-inspired design.
Key Features
- Compact 36.4mm stainless-steel case
- Seiko 4R36 automatic movement
- Automatic and manual winding
- Approximately 41-hour power reserve
- Practical day/date display
- Curved Hardlex crystal
- LumiBrite hands and hour markers
- 100m / 10 bar water resistance
- Stainless-steel bracelet
- See-through screw caseback
- Stop-seconds function for more precise time setting
- Part of the Seiko 5 Sports Field Series
- Seiko reference SRPJ81
The Skeie’s Perspective
What stands out to us about the SRPJ81 is the size.
At just 36.4mm across, this is an excellent choice for someone who likes the rugged look of a field watch but doesn't want an oversized sports watch. The compact case gives it a more traditional feel while still delivering everything we expect from the modern Seiko 5 Sports collection.
We also think the size makes this watch especially versatile. It works well on smaller wrists, appeals to anyone who prefers vintage-inspired proportions, and offers an alternative to the many 40mm-plus automatic watches on the market.
At $315, it’s also a compelling introduction to mechanical watch ownership.
An Everyday Automatic
Inside the SRPJ81 is Seiko’s Caliber 4R36, an automatic mechanical movement with approximately 41 hours of power reserve.
The movement can wind itself through normal wrist motion or be wound manually through the crown. It also includes a stop-seconds function, allowing the seconds hand to stop when setting the time.
Turn the watch over and the see-through caseback gives you a view of the mechanical movement inside—a detail we especially like for someone buying their first automatic watch.
Compact Without Feeling Delicate
The SRPJ81 measures 36.4mm in diameter, but Seiko keeps the proportions substantial enough to maintain the character of a sports watch.
A 44.4mm lug-to-lug measurement keeps it manageable across the wrist, while the 12.5mm case thickness gives the watch enough dimension to still feel purposeful.
With 100 meters of water resistance, LumiBrite on the hands and indexes, and a stainless-steel bracelet, it's designed to be an easy watch to wear day after day.
We offer complimentary shipping on all orders, with each piece carefully packaged and fully insured for delivery. For full details on shipping methods and timelines, please visit our Shipping Policy.
Articles may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Please note that some exclusions may apply. For complete return guidelines, visit our Returns Policy.
Classic Field Style in a Compact 36mm Case
The Seiko 5 Sports SRPJ81 brings classic field-watch styling into a compact, easy-to-wear 36.4mm stainless-steel case. Its clean, highly legible dial, practical day/date display, and automatic movement make it an ideal everyday watch with a distinctly casual Seiko personality.
Powered by Seiko’s proven 4R36 automatic movement, the SRPJ81 offers approximately 41 hours of power reserve along with both automatic and manual winding. A stainless-steel bracelet completes the versatile field-inspired design.
Key Features
- Compact 36.4mm stainless-steel case
- Seiko 4R36 automatic movement
- Automatic and manual winding
- Approximately 41-hour power reserve
- Practical day/date display
- Curved Hardlex crystal
- LumiBrite hands and hour markers
- 100m / 10 bar water resistance
- Stainless-steel bracelet
- See-through screw caseback
- Stop-seconds function for more precise time setting
- Part of the Seiko 5 Sports Field Series
- Seiko reference SRPJ81
The Skeie’s Perspective
What stands out to us about the SRPJ81 is the size.
At just 36.4mm across, this is an excellent choice for someone who likes the rugged look of a field watch but doesn't want an oversized sports watch. The compact case gives it a more traditional feel while still delivering everything we expect from the modern Seiko 5 Sports collection.
We also think the size makes this watch especially versatile. It works well on smaller wrists, appeals to anyone who prefers vintage-inspired proportions, and offers an alternative to the many 40mm-plus automatic watches on the market.
At $315, it’s also a compelling introduction to mechanical watch ownership.
An Everyday Automatic
Inside the SRPJ81 is Seiko’s Caliber 4R36, an automatic mechanical movement with approximately 41 hours of power reserve.
The movement can wind itself through normal wrist motion or be wound manually through the crown. It also includes a stop-seconds function, allowing the seconds hand to stop when setting the time.
Turn the watch over and the see-through caseback gives you a view of the mechanical movement inside—a detail we especially like for someone buying their first automatic watch.
Compact Without Feeling Delicate
The SRPJ81 measures 36.4mm in diameter, but Seiko keeps the proportions substantial enough to maintain the character of a sports watch.
A 44.4mm lug-to-lug measurement keeps it manageable across the wrist, while the 12.5mm case thickness gives the watch enough dimension to still feel purposeful.
With 100 meters of water resistance, LumiBrite on the hands and indexes, and a stainless-steel bracelet, it's designed to be an easy watch to wear day after day.
We offer complimentary shipping on all orders, with each piece carefully packaged and fully insured for delivery. For full details on shipping methods and timelines, please visit our Shipping Policy.
Articles may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Please note that some exclusions may apply. For complete return guidelines, visit our Returns Policy.
Classic Field Style in a Compact 36mm Case
The Seiko 5 Sports SRPJ81 brings classic field-watch styling into a compact, easy-to-wear 36.4mm stainless-steel case. Its clean, highly legible dial, practical day/date display, and automatic movement make it an ideal everyday watch with a distinctly casual Seiko personality.
Powered by Seiko’s proven 4R36 automatic movement, the SRPJ81 offers approximately 41 hours of power reserve along with both automatic and manual winding. A stainless-steel bracelet completes the versatile field-inspired design.
Key Features
- Compact 36.4mm stainless-steel case
- Seiko 4R36 automatic movement
- Automatic and manual winding
- Approximately 41-hour power reserve
- Practical day/date display
- Curved Hardlex crystal
- LumiBrite hands and hour markers
- 100m / 10 bar water resistance
- Stainless-steel bracelet
- See-through screw caseback
- Stop-seconds function for more precise time setting
- Part of the Seiko 5 Sports Field Series
- Seiko reference SRPJ81
The Skeie’s Perspective
What stands out to us about the SRPJ81 is the size.
At just 36.4mm across, this is an excellent choice for someone who likes the rugged look of a field watch but doesn't want an oversized sports watch. The compact case gives it a more traditional feel while still delivering everything we expect from the modern Seiko 5 Sports collection.
We also think the size makes this watch especially versatile. It works well on smaller wrists, appeals to anyone who prefers vintage-inspired proportions, and offers an alternative to the many 40mm-plus automatic watches on the market.
At $315, it’s also a compelling introduction to mechanical watch ownership.
An Everyday Automatic
Inside the SRPJ81 is Seiko’s Caliber 4R36, an automatic mechanical movement with approximately 41 hours of power reserve.
The movement can wind itself through normal wrist motion or be wound manually through the crown. It also includes a stop-seconds function, allowing the seconds hand to stop when setting the time.
Turn the watch over and the see-through caseback gives you a view of the mechanical movement inside—a detail we especially like for someone buying their first automatic watch.
Compact Without Feeling Delicate
The SRPJ81 measures 36.4mm in diameter, but Seiko keeps the proportions substantial enough to maintain the character of a sports watch.
A 44.4mm lug-to-lug measurement keeps it manageable across the wrist, while the 12.5mm case thickness gives the watch enough dimension to still feel purposeful.
With 100 meters of water resistance, LumiBrite on the hands and indexes, and a stainless-steel bracelet, it's designed to be an easy watch to wear day after day.
Classic Field Style in a Compact 36mm Case
The Seiko 5 Sports SRPJ81 brings classic field-watch styling into a compact, easy-to-wear 36.4mm stainless-steel case. Its clean, highly legible dial, practical day/date display, and automatic movement make it an ideal everyday watch with a distinctly casual Seiko personality.
Powered by Seiko’s proven 4R36 automatic movement, the SRPJ81 offers approximately 41 hours of power reserve along with both automatic and manual winding. A stainless-steel bracelet completes the versatile field-inspired design.
Key Features
- Compact 36.4mm stainless-steel case
- Seiko 4R36 automatic movement
- Automatic and manual winding
- Approximately 41-hour power reserve
- Practical day/date display
- Curved Hardlex crystal
- LumiBrite hands and hour markers
- 100m / 10 bar water resistance
- Stainless-steel bracelet
- See-through screw caseback
- Stop-seconds function for more precise time setting
- Part of the Seiko 5 Sports Field Series
- Seiko reference SRPJ81
The Skeie’s Perspective
What stands out to us about the SRPJ81 is the size.
At just 36.4mm across, this is an excellent choice for someone who likes the rugged look of a field watch but doesn't want an oversized sports watch. The compact case gives it a more traditional feel while still delivering everything we expect from the modern Seiko 5 Sports collection.
We also think the size makes this watch especially versatile. It works well on smaller wrists, appeals to anyone who prefers vintage-inspired proportions, and offers an alternative to the many 40mm-plus automatic watches on the market.
At $315, it’s also a compelling introduction to mechanical watch ownership.
An Everyday Automatic
Inside the SRPJ81 is Seiko’s Caliber 4R36, an automatic mechanical movement with approximately 41 hours of power reserve.
The movement can wind itself through normal wrist motion or be wound manually through the crown. It also includes a stop-seconds function, allowing the seconds hand to stop when setting the time.
Turn the watch over and the see-through caseback gives you a view of the mechanical movement inside—a detail we especially like for someone buying their first automatic watch.
Compact Without Feeling Delicate
The SRPJ81 measures 36.4mm in diameter, but Seiko keeps the proportions substantial enough to maintain the character of a sports watch.
A 44.4mm lug-to-lug measurement keeps it manageable across the wrist, while the 12.5mm case thickness gives the watch enough dimension to still feel purposeful.
With 100 meters of water resistance, LumiBrite on the hands and indexes, and a stainless-steel bracelet, it's designed to be an easy watch to wear day after day.
Every new Seiko purchased at Skeie's is backed by their 3-year warranty
PAIR IT WITH
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THE SKEIES EXPERIENCE
Frequently Asked Questions
We have a team of expert goldsmiths and jewelers on site, and can work on a large range of repair needs.
Common repairs include ring sizing, polishing, rhodium plating, adjusting chain length, replacing clasps, re-stringing services, and more.
There is no appointment necessary to drop off your items for review and estimates.
We cannot give price estimates over the phone or online, as every piece can vary.
For more information view our Jewelry Services
Yes, we have GIA Graduate Gemologists with over 50 years of invaluable experience. Whether you're curious about the worth of a family heirloom or seeking an appraisal for insurance purposes, our seasoned professionals offer meticulous evaluations to ensure you understand the true worth of your treasures.
Additionally, we have an AGS Accredited Gem Lab® (AGL) with a collection of advanced equipment allowing our gemologists to thoroughly inspect jewelry, determine and grade its qualities, calculate measurements, and arrive at an estimation of value.
Since we're located in Eugene, Oregon, we do not charge sales tax.
We offer free shipping on all orders. Our standard shipping is 3-7 days; all items are fully insured, arrive in discrete packaging, and require a signature upon delivery.
For more information view our Shipping Policy
Items may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Certain exclusions may apply.
For full details, please review our Refund Policy