Seiko Cal. 4438 - 842

Released in 1986, the Cal. 4438 with design code 842 was part of Seiko's domestic market collection. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-031dc260cc09]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1986

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