Seiko Cal. 4440 - 630

The Seiko 4440-630 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-6c02bc3be29e]

Also known as: Crown, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1970

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