Seiko Cal. 6672 - 764

This Spring Drive model from 1975 features a 39mm Hardlex-Coated Steel case. Powered by the 6672 caliber with 28j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-bedfdfb4ca2a]

Also known as: Silverwave, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1975

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