Seiko Cal. 6139 - 510

The Seiko 6139-510 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-5dfccd92680b]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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