Seiko Cal. 6649 - 376

This Spring Drive model from 1975 features a 38mm PVD Black case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-c68941190f1b]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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