Seiko Cal. 5664 - 623

Released in 1997, the Cal. 5664 with design code 623 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-da01444021ed]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1997

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