Seiko Cal. 6221 - 365

The 6221-365 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6221 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-d88b45dbe6cc]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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