Seiko Cal. 5644 - 923

The Seiko 5644-923 represents an important milestone in Seiko's 1982 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-c4710548f25a]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1982

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