Seiko Cal. 4450 - 817

Released in 1972, the Cal. 4450 with design code 817 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-177f06eeb5bd]

Also known as: Navigator, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1972

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