Seiko Cal. 5652 - 331

The Seiko 5652-331 represents an important milestone in Seiko's 1973 lineup. Powered by the 5652 caliber with 21j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-97087297b04f]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1973

Related Models

• Seiko 6233-516
• Seiko 6222-245
• Seiko 6175-403
• Seiko 7178-245
• Seiko 0785-359
• Seiko 7191-613
• Seiko 4566-337
• Seiko 4552-992
• Seiko 0778-683
• Seiko 6316-573
• Seiko 6691-318
• Seiko 6368-469