Seiko Cal. 6690 - 138

The 6690-138 is a sought-after Solar piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-13d0cf5505fb]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

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