Seiko Cal. 5666 - 625

This Quartz model from 1985 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ba4992dd565a]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1985

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