Seiko Cal. 5666 - 740

The Seiko 5666-740 represents an important milestone in Seiko's 1983 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fc5e93f796dd]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1983

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