Seiko Cal. 5278 - 392

Released in 1971, the Cal. 5278 with design code 392 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-af30dacced5e]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1971

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