KASTAR K7101 Day-Date Field Quartz Watch, 41mm

The KASTAR K7101 family is a 41 mm quartz field watch available in six dial-and-strap combinations, including black, blue and full-lume dials on NATO or two-piece nylon straps.

Why It Stands Out

• Six exact dial-and-strap combinations
• Day and date display
• Quartz movement for low-maintenance everyday wear
• 41 mm alloy case with a slim 9.5 mm profile
• 21 mm nylon strap options

Watch Details

• Family: KASTAR K7101
• Movement: Quartz
• Case diameter: 41 mm
• Case thickness: 9.5 mm
• Case material: Alloy
• Crystal: Glass
• Functions: Day and date
• Strap: Nylon, 21 mm
• Water resistance: 30 m (3 ATM), manufacturer-rated — splashes and rain, not swimming or diving

Available Styles

• K7101-97: Black dial / black NATO
• K7101-38: Full-lume dial / olive NATO
• K7101-37: Black dial / olive NATO
• K7101-28: Full-lume dial / olive two-piece
• K7101-27: Black dial / olive two-piece
• K7101-34: Blue dial / navy NATO

Fit and Wear

41 mm wide and 9.5 mm thick is the classic field-watch proportion, and it works on almost any wrist. A NATO passes underneath the case and lifts the watch a couple of millimetres, so if you want the flattest fit under a sleeve, choose one of the two-piece straps. Nylon is the right material either way: it takes sweat and rain without complaint and dries fast. Choose the NATO styles for a traditional field-watch look or the two-piece straps for a cleaner everyday fit. One thing worth knowing before you plan a strap swap: 21 mm is an unusual lug width, so measure before you order a replacement.

Colin's Take

Buy the full-lume dial. A field watch is supposed to be readable in the dark, and a fully luminous dial does that in a way a few glowing dots never will, which is the one thing that separates this from every other cheap field watch on the internet. The black-on-black NATO is the sensible pick if you would rather nobody notice the watch at all. At thirty dollars none of these is precious, and that is the appeal: wear it gardening, wear it travelling, and do not think about it. If you want a watch you will still own in ten years, spend more elsewhere.