Seiko Cal. 4447 - 471

The Seiko 4447-471 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-ff94f24da75a]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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