Seiko Cal. 5646 - 631

Seiko 5646-631

This Quartz model from 1994 features a 37mm Hardlex-Coated Steel case. With its 21mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-9a2c58b27ce5]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
9.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1994

Related Models

seikata-wm-9a2c58b27ce5