Seiko Cal. 6639 - 526

Seiko 6639-526

This Automatic model from 1977 features a 44mm Gold-Plated case. With its 22mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-e36ac4e6c564]

Also known as: Bullhead, Navigator

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
15.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Champagne
Jewels
22j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1977

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