Seiko Cal. 6379 - 227

The 6379-227 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6379 caliber with 29j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-92c2650d4a35]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1987

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