Seiko Cal. 4432 - 727

The Seiko 4432-727 represents an important milestone in Seiko's 1987 lineup. Powered by the 4432 caliber with 28j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-060d1924d4ab]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1987

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