Seiko Cal. 5647 - 442

The Seiko 5647-442 represents an important milestone in Seiko's 1986 lineup. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-08096ee30ae1]

Also known as: Bullhead, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1986

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