Seiko Cal. 5643 - 930

The 5643-930 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-ff9475a0cc07]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1998

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