Seiko Cal. 6364 - 680

This Solar model from 1990 features a 37mm PVD Black case. With its 19mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-ba9044e5de73]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1990

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