Seiko Cal. 7139 - 503

The 7139-503 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7139 caliber with 35j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-dd7213807540]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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