Seiko Cal. 5621 - 931

This Hand-Winding model from 1971 features a 40mm Hardlex-Coated Steel case. With its 18mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-d06664183d2c]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

Related Models

• Seiko 4513-949
• Seiko 4463-309
• Seiko 7079-371
• Seiko 4576-304
• Seiko 0749-582
• Seiko 6685-771
• Seiko 6289-869
• Seiko 6276-418
• Seiko 4560-124
• Seiko 6292-356
• Seiko 4570-788
• Seiko 6378-517