Seiko Cal. 6637 - 935

The 6637-935 is a sought-after Solar piece from Seiko's golden era. Powered by the 6637 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-fff5fb1d25f8]

Also known as: Sumo, Shogun

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1976

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