Seiko Cal. 5671 - 220

The Seiko 5671-220 represents an important milestone in Seiko's 1970 lineup. Powered by the 5671 caliber with 24j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-3e133a81a5e6]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

Related Models

• Seiko 5611-803
• Seiko 7127-803
• Seiko 7091-680
• Seiko 6669-505
• Seiko 4591-329
• Seiko 6118-325
• Seiko 3862-101
• Seiko 4439-808
• Seiko 3893-131
• Seiko 6655-278
• Seiko 5639-979
• Seiko 3815-394