Seiko Cal. 6678 - 256

The 6678-256 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6678 caliber with 32j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-9bbbb9e7be50]

Also known as: Monster, Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1998

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