Seiko Cal. 4440 - 436

The 4440-436 is a sought-after Solar piece from Seiko's golden era. Powered by the 4440 caliber with 21j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-c1a36d4ba843]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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