Seiko Cal. 4478 - 343

The Seiko 4478-343 represents an important milestone in Seiko's 1968 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-fc138fc34678]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1968

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