Seiko Cal. 5278 - 180

The Seiko 5278-180 represents an important milestone in Seiko's 1966 lineup. Powered by the 5278 caliber with 18j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-1d8dc63c8001]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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