Seiko Cal. 4478 - 355

The Seiko 4478-355 represents an important milestone in Seiko's 1996 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-11fff231a241]

Also known as: Sumo, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1996

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