Seiko Cal. 6637 - 400

Seiko 6637-400

This Quartz model from 1983 features a 44mm Gold-Plated case. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-d6791bcb4008]

Also known as: Tuna

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
13.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
190m
Dial Color
Champagne
Jewels
25j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1983

Related Models

seikata-wm-d6791bcb4008