Seiko Cal. 6634 - 985

Seiko 6634-985

The 6634-985 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6634 caliber with 27j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-f02a9562e9ac]

Also known as: Helmet, Flighty

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
9.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Navy
Jewels
27j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1966

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