Seiko Cal. 5231 - 473

The Seiko 5231-473 represents an important milestone in Seiko's 1980 lineup. Powered by the 5231 caliber with 27j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-73f87a7e91f4]

Also known as: Helmet, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1980

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