Seiko Cal. 5231 - 473

Seiko 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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