Best straps for the Seiko Prospex Alpinist
20 mm lugs, 38 mm case, reference SPB121 (since 2020). Try a strap below; the drawing is to scale.
Strap
Colour: Dark brown
Strap width20 mm
At the buckle18 mm
Lug to lug46.4 mm
Looks that work on the Seiko Prospex Alpinist
Seiko Prospex Alpinist specs
- Made
- since 2020
- Case
- 38 mm × 12.9 mm thick
- Lug width
- 20 mm
- Lug to lug
- 46.4 mm
- Case material
- stainless steel
- Movement
- Calibre 6R35, automatic
- Water resistance
- 200 m
- Nickname
- Alpinist
From the maker's published figures, gathered with AI help and not yet checked against a watch in hand. Measure your lugs before you buy.
Strap size for the Seiko Prospex Alpinist
What size strap fits the Seiko Prospex Alpinist?
The Seiko Prospex Alpinist takes 20 mm straps: its lug width is 20 mm. A leather strap will usually taper to 18 mm at the buckle.
How big is the Seiko Prospex Alpinist?
The case is 38 mm across, and about 46.4 mm from lug tip to lug tip.
What strap looks best on the Seiko Prospex Alpinist?
Good options are an olive NATO strap, a tan leather strap, a taupe suede strap. Try them all on the drawing above.
Sizes come from published specs. Check yours before you buy: how to measure lug width.