Seiko Cal. 6690 - 354

The Seiko 6690-354 represents an important milestone in Seiko's 1965 lineup. It features a Silver dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-de0ba23ef30c]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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