Seiko Cal. 6688 - 387

This Spring Drive model from 1975 features a 45mm Two-Tone case. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-4224ddb2791e]

Also known as: Samurai, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1975

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