Seiko Cal. 6612 - 639

The Seiko 6612-639 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-e2d69ac4be9b]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1987

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