Seiko Cal. 6616 - 749

The Seiko 6616-749 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-bff40098f945]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1975

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