Seiko Cal. 5644 - 407

This Solar model from 1970 features a 37mm Two-Tone case. It features a Burgundy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-3b291a25adcc]

Also known as: Turtle, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1970

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