Seiko Cal. 3866 - 778

The Seiko 3866-778 represents an important milestone in Seiko's 1991 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-914d71c3b756]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1991

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