Seiko Cal. 4448 - 312

The 4448-312 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-fd2d236ca653]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1986

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