Seiko Cal. 6666 - 397

The Seiko 6666-397 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-5d75858a3afc]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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