Seiko Cal. 5644 - 923

The 5644-923 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-ff587852c002]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1979

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