Seiko Cal. 6618 - 990

The 6618-990 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6618 caliber with 32j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-87a037ceabcb]

Also known as: Emperor, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1980

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