Seiko Cal. 6188 - 540

Released in 1978, the Cal. 6188 with design code 540 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-e6d07db441e1]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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