Seiko Cal. 6188 - 691

The Seiko 6188-691 represents an important milestone in Seiko's 1967 lineup. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-339de0a52ac7]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1967

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