Seiko Cal. 6690 - 366

The Seiko 6690-366 represents an important milestone in Seiko's 1978 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-1c87895cc8d7]

Also known as: Panda

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1978

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