Seiko Cal. 4478 - 711

The Seiko 4478-711 represents an important milestone in Seiko's 1997 lineup. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-eb60e8fa56d3]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1997

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