Seiko Cal. 6616 - 540

The 6616-540 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-31754a09cb60]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1969

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