Seiko Cal. 4438 - 613

Released in 1967, the Cal. 4438 with design code 613 was part of Seiko's domestic market collection. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-fa81553fd143]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

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