Seiko Cal. 4436 - 471

The Seiko 4436-471 represents an important milestone in Seiko's 1966 lineup. Powered by the 4436 caliber with 27j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-f89d154e1172]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1966

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