Seiko Cal. 0728 - 736

The 0728-736 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0728 caliber with 22j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-ec1ceb28f61d]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

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