Seiko Cal. 6644 - 592

The Seiko 6644-592 represents an important milestone in Seiko's 1992 lineup. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-aec44bec6d6e]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1992

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