Seiko Cal. 6644 - 827

The Seiko 6644-827 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-5c0e9b38e793]

Also known as: Bellmatic, Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1976

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