Seiko Cal. 6331 - 757

This Solar model from 1977 features a 35mm Stainless Steel case. Powered by the 6331 caliber with 17j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-1acd1b5116e4]

Also known as: Monster, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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