Seiko Cal. 0731 - 446

The Seiko 0731-446 represents an important milestone in Seiko's 1965 lineup. Powered by the 0731 caliber with 23j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-5a3286332c0c]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1965

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