Seiko Cal. 0770 - 521

This Spring Drive model from 1993 features a 41mm Gold-Plated case. Powered by the 0770 caliber with 33j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-ffa9f10fd962]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1993

Related Models

• Seiko 7036-691
• Seiko 6282-953
• Seiko 0775-752
• Seiko 5613-337
• Seiko 5254-123
• Seiko 5687-379
• Seiko 3824-155
• Seiko 4470-246
• Seiko 5641-130
• Seiko 5269-347
• Seiko 6229-248
• Seiko 3841-916