Seiko Cal. 6188 - 687

The Seiko 6188-687 represents an important milestone in Seiko's 1969 lineup. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-4636211a8973]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1969

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