Seiko Cal. 6355 - 204

The Seiko 6355-204 represents an important milestone in Seiko's 1976 lineup. Powered by the 6355 caliber with 18j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-ba11cee28957]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1976

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