Seiko Cal. 6690 - 834

The 6690-834 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-d8445fcd64df]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1977

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