Seiko Cal. 4554 - 925

The Seiko 4554-925 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-73ad8d7ec6f8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1972

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