Seiko Cal. 5231 - 151

This Hand-Winding model from 1976 features a 35mm Titanium case. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-29579fd89548]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1976

Related Models

• Seiko 5284-399
• Seiko 4577-699
• Seiko 4411-943
• Seiko 5268-569
• Seiko 6198-645
• Seiko 6140-275
• Seiko 0757-423
• Seiko 4489-831
• Seiko 4491-652
• Seiko 7174-140
• Seiko 5223-829
• Seiko 5615-234