Seiko Cal. 7139 - 309

The 7139-309 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7139 caliber with 27j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-e4e95ab86fd8]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1967

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