Seiko Cal. 4539 - 938

The 4539-938 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4539 caliber with 27j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-f648fe275b3b]

Also known as: Bullhead, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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