Seiko Cal. 5671 - 220

Seiko 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

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