Seiko Cal. 5646 - 840

Seiko 5646-840

This Automatic model from 1991 features a 43mm Titanium case. With its 19mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-71bf76012074]

Also known as: Sumo, Sea Horse

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
43mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Black
Jewels
19j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1991

Related Models

seikata-wm-71bf76012074