Seiko Cal. 5278 - 301

This Spring Drive model from 1991 features a 35mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-36575cd7faf2]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1991

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