Seiko Cal. 4436 - 970

The 4436-970 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4436 caliber with 21j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-85a42b615026]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1980

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