Seiko Cal. 5278 - 139

Released in 1984, the Cal. 5278 with design code 139 was part of Seiko's domestic market collection. Powered by the 5278 caliber with 35j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-63fef6c3c57a]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1984

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