Seiko Cal. 5664 - 356

This Spring Drive model from 1971 features a 44mm Gold-Plated case. It features a Silver dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-3e0f9b792ecc]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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