Seiko Cal. 6641 - 617

The 6641-617 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-6fa6538c0f64]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1974

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