Seiko Cal. 6660 - 551

The Seiko 6660-551 represents an important milestone in Seiko's 1990 lineup. It features a Navy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-457f528f683d]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1990

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