Seiko Cal. 3889 - 634

Seiko 3889-634

This Hand-Winding model from 1977 features a 38mm Hardlex-Coated Steel case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-8b725f709d54]

Also known as: Sumo, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1977

Related Models

seikata-wm-8b725f709d54