Seiko Cal. 4498 - 531

This Spring Drive model from 1966 features a 40mm Gold-Plated case. Powered by the 4498 caliber with 35j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-95b16381b544]

Also known as: Sumo, Pogue

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1966

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