Seiko Cal. 4478 - 397

The Seiko 4478-397 represents an important milestone in Seiko's 1966 lineup. It features a White dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-3c3fc2a8df0f]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1966

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