Seiko Cal. 5648 - 400

This Automatic model from 1979 features a 36mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-25a5fd0fd21d]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1979

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