Seiko Cal. 3878 - 591

The Seiko 3878-591 represents an important milestone in Seiko's 1983 lineup. Powered by the 3878 caliber with 29j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-4f3a3ce73b8c]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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