Seiko Cal. 4440 - 687

Released in 1969, the Cal. 4440 with design code 687 was part of Seiko's domestic market collection. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-bbfd2ec4d781]

Also known as: Samurai, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1969

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