Seiko Cal. 6643 - 488

The Seiko 6643-488 represents an important milestone in Seiko's 1966 lineup. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-95b63478ceaa]

Also known as: Pogue, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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