Seiko Cal. 3811 - 761

This Automatic model from 1966 features a 36mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-1a3cea5549bb]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1966

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