Seiko Cal. 5636 - 739

Released in 1971, the Cal. 5636 with design code 739 was part of Seiko's domestic market collection. With its 22mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-d37ceaa1bd6a]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1971

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