Seiko Cal. 6331 - 889

This Solar model from 1977 features a 37mm Stainless Steel case. Powered by the 6331 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-afa8929c34eb]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1977

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