Seiko Cal. 5640 - 313

The 5640-313 is a sought-after Automatic piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-6e0a530a36c9]

Also known as: Shogun, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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