Seiko Cal. 0731 - 140

The 0731-140 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0731 caliber with 28j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-66af5a5586e4]

Also known as: Navigator, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1973

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