Seiko Cal. 5659 - 645

This Automatic model from 1973 features a 34mm Titanium case. It features a Silver dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-249546f5e3ef]

Also known as: Monster, Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1973

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