Seiko Cal. 0728 - 642

The 0728-642 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0728 caliber with 36j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-739420741ded]

Also known as: Samurai, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1972

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