Seiko Cal. 6646 - 649

The Seiko 6646-649 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-d0eb12273b64]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1970

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