Seiko Cal. 5637 - 531

The 5637-531 is a sought-after Solar piece from Seiko's golden era. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-b33ca34d3380]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1966

Related Models

• Seiko 6110-583
• Seiko 6161-212
• Seiko 5264-463
• Seiko 5216-604
• Seiko 6274-744
• Seiko 4433-879
• Seiko 7064-286
• Seiko 0755-544
• Seiko 7021-321
• Seiko 6131-383
• Seiko 7010-810
• Seiko 5623-138