Seiko Cal. 6638 - 277

Seiko 6638-277

The 6638-277 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6638 caliber with 33j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-3675b721ad8e]

Also known as: Sea Horse

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
14.5mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Cream
Jewels
33j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1968

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