Seiko Cal. 5690 - 472

This Hand-Winding model from 1969 features a 40mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-5339fd2722ed]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1969

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