Seiko Cal. 7139 - 651

The 7139-651 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7139 caliber with 36j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-67c7d65ac800]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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