Seiko Cal. 6139 - 315

Released in 1977, the Cal. 6139 with design code 315 was part of Seiko's domestic market collection. Powered by the 6139 caliber with 28j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-6288770db1fd]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1977

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