Seiko Cal. 5643 - 131

The 5643-131 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-e3b60b0eb6a4]

Also known as: Turtle, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1967

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