Seiko Cal. 5639 - 532

This Spring Drive model from 1977 features a 37mm PVD Black case. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-60d13ac2069e]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1977

Related Models

• Seiko 0771-821
• Seiko 0784-998
• Seiko 6394-886
• Seiko 6387-906
• Seiko 6190-975
• Seiko 5260-588
• Seiko 7026-849
• Seiko 6665-546
• Seiko 6355-330
• Seiko 7090-357
• Seiko 6614-524
• Seiko 6299-631