Seiko Cal. 7139 - 928

The 7139-928 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7139 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-09531d45e9ed]

Also known as: Pogue, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1972

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