Seiko Cal. 5639 - 437

This Solar model from 1977 features a 41mm PVD Black case. It features a Burgundy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-0134061432f9]

Also known as: Silverwave, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1977

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