Seiko Cal. 4436 - 180

Released in 1966, the Cal. 4436 with design code 180 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-51bca182df39]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1966

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