Seiko Cal. 4581 - 952

Seiko 4581-952

The Seiko 4581-952 represents an important milestone in Seiko's 1969 lineup. Powered by the 4581 caliber with 32j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-5b92032a333f]

Also known as: Sumo, Helmet

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
39mm
Case Thickness
14.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1969

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seikata-wm-5b92032a333f