Seiko Cal. 5278 - 137

The 5278-137 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5278 caliber with 18j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-7868fe70a6ac]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1988

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