Seiko Cal. 6181 - 678

The Seiko 6181-678 represents an important milestone in Seiko's 1965 lineup. Powered by the 6181 caliber with 18j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-8e85241c669a]

Also known as: Goldfeather, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1965

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