Seiko Cal. 5221 - 412

This Automatic model from 1965 features a 37mm Two-Tone case. Powered by the 5221 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-8c27deefb3f0]

Also known as: Sumo, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

Related Models

• Seiko 5616-904
• Seiko 5646-362
• Seiko 6177-171
• Seiko 4527-124
• Seiko 6312-412
• Seiko 6242-489
• Seiko 6267-451
• Seiko 7014-383
• Seiko 7062-586
• Seiko 6223-289
• Seiko 6328-861
• Seiko 0733-887