Seiko Cal. 5278 - 610

The 5278-610 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-67031bb1446d]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1991

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