Seiko Cal. 4557 - 978

The 4557-978 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-b800f5ed0218]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1966

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