Seiko Cal. 6638 - 556

Seiko 6638-556

This Automatic model from 1976 features a 41mm Stainless Steel case. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-d8d83ff68e8e]

Also known as: Tuna, Panda

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
8.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
25j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1976

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