Seiko Cal. 5278 - 777

The 5278-777 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-552543d8f08f]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1988

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