Seiko Cal. 5647 - 434

Released in 1972, the Cal. 5647 with design code 434 was part of Seiko's domestic market collection. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-f9dff3ec6a73]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1972

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