Seiko Cal. 6642 - 366

Seiko 6642-366

This Automatic model from 1972 features a 37mm Stainless Steel case. With its 18mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-1bdc62f793c0]

Also known as: Turtle, Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1972

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