Seiko Cal. 6645 - 131

The Seiko 6645-131 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-556a8ec9cc87]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1983

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