Seiko Cal. 5639 - 100

This Solar model from 1980 features a 37mm Gold-Plated case. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-6c9a19d902af]

Also known as: Helmet, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

Related Models

• Seiko 4491-474
• Seiko 6374-399
• Seiko 6120-420
• Seiko 5627-687
• Seiko 4556-401
• Seiko 4545-634
• Seiko 4589-384
• Seiko 6260-977
• Seiko 0721-530
• Seiko 4541-164
• Seiko 0789-298
• Seiko 0791-738