Seiko Cal. 5691 - 320

The Seiko 5691-320 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-277777eac929]

Also known as: Rally, Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1972

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