Seiko Cal. 6689 - 236

The Seiko 6689-236 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-fe40712d538c]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1966

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