Seiko Cal. 6691 - 733

This Hand-Winding model from 1965 features a 44mm PVD Black case. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-f9b7557aa623]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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