Seiko Cal. 0747 - 446

The Seiko 0747-446 represents an important milestone in Seiko's 1969 lineup. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-a94fb012bf2f]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

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