Seiko Cal. 4578 - 102

The 4578-102 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-ae083189bac8]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1986

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