Seiko Cal. 6632 - 143

This Spring Drive model from 1966 features a 42mm Titanium case. Powered by the 6632 caliber with 33j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-bb86fbe8f067]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1966

Related Models

• Seiko 5215-823
• Seiko 6168-100
• Seiko 0788-361
• Seiko 5694-634
• Seiko 6127-950
• Seiko 4436-919
• Seiko 4571-217
• Seiko 0766-662
• Seiko 3872-651
• Seiko 0760-699
• Seiko 6229-403
• Seiko 0741-748