Seiko Alpinist on a dark brown leather strap Looks that work on the Seiko Alpinist
Strap size for the Seiko Alpinist
What size strap fits the Seiko Alpinist?
The Seiko 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 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 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.