Seiko Cal. 4531 - 747

This Spring Drive model from 1978 features a 41mm Stainless Steel case. With its 20mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-a526380cb86e]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

Related Models

• Seiko 4548-568
• Seiko 6634-510
• Seiko 6113-561
• Seiko 4427-751
• Seiko 4555-277
• Seiko 6281-488
• Seiko 7078-330
• Seiko 5676-289
• Seiko 6171-589
• Seiko 6358-318
• Seiko 3894-777
• Seiko 5296-853