Seiko Cal. 6231 - 731

This Spring Drive model from 1972 features a 39mm Gold-Plated case. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-f6ddb82cce62]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1972

Related Models

• Seiko 6659-494
• Seiko 0733-900
• Seiko 6380-258
• Seiko 7089-285
• Seiko 5296-777
• Seiko 7028-624
• Seiko 7179-991
• Seiko 5653-727
• Seiko 6612-445
• Seiko 5681-314
• Seiko 6153-144
• Seiko 3844-314