Seiko Cal. 6139 - 688

The 6139-688 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6139 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-2bbdcc8345df]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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