Seiko Cal. 5645 - 684

Released in 1986, the Cal. 5645 with design code 684 was part of Seiko's domestic market collection. With its 20mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-da9be708a999]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1986

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