Seiko Cal. 0730 - 939

The 0730-939 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0730 caliber with 34j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-04a3e257b152]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1988

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