Seiko Cal. 5639 - 350

Released in 1975, the Cal. 5639 with design code 350 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-fe7eefcbdc96]

Also known as: Monster, Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1975

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