Seiko Cal. 5231 - 966

Seiko 5231-966

The 5231-966 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-dc73153acb9f]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Champagne
Jewels
22j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1991

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seikata-wm-dc73153acb9f