Seiko Cal. 4557 - 361

This Spring Drive model from 1997 features a 35mm PVD Black case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-2cdda1cf3c0c]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1997

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