CASIO MCW100H-1AV 50 mm resin chronograph watch
- Quartz
- Sport
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Automatic dress watch with 21-jewel movement, day/date display, and see-through case back
The Seiko 5 SNKL83K1 is a self-winding automatic dress watch built for adults who prefer a classic analog display. Its stainless steel case and bracelet pair a black dial with silver-tone index markers and a day-date window. The see-through case back reveals the 21-jewel Calibre 7S36 movement in motion.
An automatic movement relies on wrist motion to wind the mainspring, so the watch stops if left unworn for roughly two days. It does not offer the set-and-forget convenience of a battery-powered quartz model. The Hardlex crystal resists daily knocks but is not a sapphire crystal, so deep scratches can appear over time.
The bracelet attaches with a 20 mm lug width, which determines every aftermarket strap or bracelet that will fit without modification. Buyers who want a different look must source 20 mm accessories exclusively. Those needing a narrower or wider lug spacing should consider a different watch model.
Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Seiko |
| Model name | SNKL83K1 |
| Design style | Dress |
| Product series | 5 |
| Product color | Silver |
| Watch face color | Black |
| Item condition | New |
| Display | |
| Display type | Analog |
| Size & build | |
| Main material | Stainless Steel |
| Product shape | Round |
| Strap material | Metal |
| Strap length | 7 |
| Strap width | 20 |
| Closure type | Fold-Over Clasp |
| Case construction | See through |
| Case size | 38 |
| Housing material | Stainless Steel |
| Watch glass | Mineral Crystal |
| Environment & compliance | |
| Water resistance | Yes |
| More details | |
| Watch movement | Automatic |
| Dial markings | Index |
| Date display | Day/Date |
| Suitable for | Male |
| Age group | Adult |
The 20 mm band width is fixed on this model; it matches the lug width of the stainless steel case and cannot be changed without replacing the bracelet.
The 21-jewel Calibre 7S36 is a self-winding mechanical movement powered by wrist motion; it provides a day/date display and runs without a battery.
Hardlex is Seiko's hardened mineral crystal; it resists scratches better than standard mineral glass but is not as hard as sapphire.
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