Seiko Cal. 6634 - 696

The 6634-696 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6634 caliber with 28j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-1a97ec856ea2]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1989

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