Seiko Cal. 5640 - 552

The Seiko 5640-552 represents an important milestone in Seiko's 1982 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-3ecaa7ab699a]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1982

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