Seiko Cal. 6139 - 408

The 6139-408 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6139 caliber with 28j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-6b38bd6444e2]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1991

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