Seiko Cal. 6355 - 639

The Seiko 6355-639 represents an important milestone in Seiko's 1975 lineup. Powered by the 6355 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-241a95047931]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1975

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