Seiko Cal. 6660 - 554

The Seiko 6660-554 represents an important milestone in Seiko's 1967 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-7b35fa837ab4]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1967

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