Seiko Cal. 4446 - 257

The 4446-257 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-d1b51cb5f6de]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1974

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