Seiko Cal. 7020 - 460

This Spring Drive model from 1974 features a 36mm Hardlex-Coated Steel case. Powered by the 7020 caliber with 17j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-1fc087ef2ecd]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

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