Seiko Cal. 0728 - 647

This Solar model from 1970 features a 36mm Hardlex-Coated Steel case. Powered by the 0728 caliber with 19j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-8b5ba326365e]

Also known as: Crown, Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1970

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