Seiko Cal. 3890 - 691

Seiko 3890-691

This Spring Drive model from 1994 features a 46mm Titanium case. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c321e477f163]

Also known as: Sumo

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
46mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Green
Jewels
22j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1994

Related Models

seikata-wm-c321e477f163