Seiko 5 Sports "Field Specialist"
Affordable field watch with 4R36 automatic movement.
Our take on the Seiko 5 Sports "Field Specialist"
The Seiko 5 Sports line is the reason so many collections start with Seiko. Automatic movement, day-date, 100m water resistance and a price under $300 — the Field Specialist variant trades the diver bezel for a legible 24-hour track and a more versatile case.
What to know before buying
- ▸4R36 automatic with hacking and hand-winding.
- ▸100m water resistance — safe for swimming.
- ▸Day and date at 3 o'clock.
- ▸Hardlex crystal, not sapphire, at this price point.
Where and how to buy
Authorized dealers and Seiko's own store price these consistently; grey market Japanese sellers often go lower. A sapphire crystal upgrade is a common and inexpensive aftermarket modification.
Prices and availability change constantly. See our authentication checklist before any pre-owned purchase, and our servicing cost guide to budget for ownership.
Seiko 5 Sports "Field Specialist" — frequently asked questions
Is Hardlex a problem?
It resists shattering better than sapphire but scratches more easily. Many owners swap it eventually.
How accurate is the 4R36?
Rated -35 to +45 seconds per day; most examples run considerably better and can be regulated.