Proton MB-1 Day/Date

Discover utility and resilience with the Proton MB-1. Fitted with a sapphire crystal and Japanese automatic-winding mechanical movement, this "Go Anywhere Do Anything" watch will accompany you on any adventure without skipping a beat. Whether it's a swim in the ocean or a slow day in the office, the Proton MB-1 will be there when you need it.

The MB-1 features a cut-to-size FKM rubber strap with steel deployant clasp for maximum comfort and easy wearing. The 20 mm lug width is the most popular size on the market, so finding compatible bands and bracelets could not be easier.

Specs

• Japanese self-winding mechanical movement with 41 hour power reserve
• Stainless steel case with screw-down crown and sapphire crystal
• Chemical-resistant FKM w/ milled steel clasp 
• Case width: 38 mm
• Case thickness w/ crystal: 14 mm
• Lug-to-lug: 47.6 mm
• Lug width: 20 mm
• Water resistance: tested up to 6 bar (60 m)

What you get

When you purchase an MB-1 you get:

• The MB-1 (of course) w/ FKM strap
• Spring bar removal/installation tool
• A hard-shell padded carrying case
• A pretty rad Proton branded sticker for all of your stickering needs