Seiko Cal. 4438 - 627

Released in 1970, the Cal. 4438 with design code 627 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-4fba2471ddc9]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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