Seiko Cal. 5231 - 897

The 5231-897 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5231 caliber with 26j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-30b897c74bd9]

Also known as: Helmet, Goldfeather

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1971

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