Seiko Cal. 6618 - 260

The 6618-260 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6618 caliber with 35j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-c4d84a640d69]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1969

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