Seiko Cal. 5651 - 638

Released in 1990, the Cal. 5651 with design code 638 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-5d6c4dc6ca6f]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1990

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