Seiko Cal. 6613 - 377

The 6613-377 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ee5fe29be7b2]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1982

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