Seiko Cal. 4531 - 204

This Solar model from 1971 features a 41mm Stainless Steel case. Powered by the 4531 caliber with 36j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-c6553d1738ae]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1971

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