Seiko Cal. 5241 - 431

This Spring Drive model from 1975 features a 45mm PVD Black case. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-22334c119994]

Also known as: Monster, Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1975

Related Models

• Seiko 4449-184
• Seiko 5282-970
• Seiko 6235-272
• Seiko 6678-674
• Seiko 3887-587
• Seiko 6292-804
• Seiko 0798-280
• Seiko 6640-110
• Seiko 5286-357
• Seiko 7188-868
• Seiko 4584-705
• Seiko 6396-172