Seiko Cal. 5688 - 833

This Hand-Winding model from 1967 features a 37mm PVD Black case. It features a Silver dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-498777cd99f5]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1967

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