Seiko Cal. 4580 - 237

Seiko 4580-237

The 4580-237 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4580 caliber with 26j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-095446dc4ee6]

Also known as: Monster, Bullhead

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
8.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1966

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seikata-wm-095446dc4ee6