Seiko Cal. 4533 - 181

This Automatic model from 1971 features a 39mm Titanium case. It features a White dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-7c4c1538a517]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1971

Related Models

• Seiko 5629-181
• Seiko 6691-554
• Seiko 6197-914
• Seiko 6221-728
• Seiko 4424-433
• Seiko 3811-766
• Seiko 0776-783
• Seiko 5289-822
• Seiko 6271-693
• Seiko 5290-196
• Seiko 5668-646
• Seiko 4564-737