Seiko Cal. 5637 - 165

Released in 1987, the Cal. 5637 with design code 165 was part of Seiko's domestic market collection. With its 19mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-5f4ea5ae6955]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1987

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