Seiko Cal. 6139 - 370

The 6139-370 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6139 caliber with 35j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-74c0c1336724]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1973

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