Seiko Cal. 5638 - 320

Released in 1996, the Cal. 5638 with design code 320 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-5bf3ca417290]

Also known as: Monster, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1996

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