Seiko Cal. 6636 - 308

Seiko 6636-308

The 6636-308 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-71634ea97020]

Also known as: Turtle, Rally

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Silver
Jewels
19j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1979

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seikata-wm-71634ea97020