Seiko Cal. 0715 - 728

This Hand-Winding model from 1976 features a 40mm Stainless Steel case. Powered by the 0715 caliber with 34j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-1b539f4bb1a1]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1976

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