Seiko Cal. 6689 - 913

The 6689-913 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-ad9bdb655e0c]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1978

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