Seiko Cal. 5231 - 331

This Kinetic model from 1973 features a 36mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-21e67899f177]

Also known as: Samurai, Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1973

Related Models

• Seiko 5219-150
• Seiko 7064-577
• Seiko 5294-749
• Seiko 7086-598
• Seiko 4432-571
• Seiko 4571-896
• Seiko 7060-648
• Seiko 4560-407
• Seiko 0799-470
• Seiko 6648-688
• Seiko 5667-318
• Seiko 6329-158