Seiko Cal. 4490 - 770

This Hand-Winding model from 1970 features a 45mm PVD Black case. With its 20mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-4df053431dc0]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1970

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