Seiko Cal. 6660 - 623

The Seiko 6660-623 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-50604ed0ce2d]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1985

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