Seiko Cal. 5261 - 578

The Seiko 5261-578 represents an important milestone in Seiko's 1980 lineup. Powered by the 5261 caliber with 34j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-4283e2005b56]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1980

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