Seiko Cal. 6613 - 991

The 6613-991 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6613 caliber with 21j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-67358720161c]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1982

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