Seiko Cal. 6678 - 105

The Seiko 6678-105 represents an important milestone in Seiko's 1967 lineup. Powered by the 6678 caliber with 29j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-3c7241620980]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1967

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