Seiko Cal. 4436 - 783

Released in 1977, the Cal. 4436 with design code 783 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-cf11ed407491]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1977

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