Seiko Cal. 6659 - 370

The Seiko 6659-370 represents an important milestone in Seiko's 1980 lineup. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-ae24a6343e10]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1980

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