Seiko Cal. 6258 - 778

The Seiko 6258-778 represents an important milestone in Seiko's 1975 lineup. Powered by the 6258 caliber with 21j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-65b5820c68f9]

Also known as: Tuna, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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