Seiko Cal. 5640 - 560

This Quartz model from 1984 features a 37mm Gold-Plated case. It features a Green dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-bcb65809e5d0]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1984

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