Seiko Cal. 6638 - 695

Seiko 6638-695

The 6638-695 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-61381f742100]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
11.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1985

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seikata-wm-61381f742100