Seiko Cal. 6380 - 747

The 6380-747 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6380 caliber with 29j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-88e8f206037a]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1979

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