Seiko Cal. 6616 - 746

The Seiko 6616-746 represents an important milestone in Seiko's 1988 lineup. It features a White dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-8fcb0764f554]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1988

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