Seiko Cal. 5657 - 789

Released in 1975, the Cal. 5657 with design code 789 was part of Seiko's domestic market collection. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-cc11433193ec]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1975

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