Seiko Cal. 0721 - 404

This Quartz model from 1966 features a 42mm Titanium case. Powered by the 0721 caliber with 17j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-7bb540f90261]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1966

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