Seiko Cal. 4435 - 821

The Seiko 4435-821 represents an important milestone in Seiko's 1976 lineup. Powered by the 4435 caliber with 35j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-181d2f9ecbfc]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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