Seiko Cal. 6616 - 578

This Automatic model from 1967 features a 42mm Titanium case. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-0ebf704911b7]

Also known as: Tuna, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1967

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