Seiko Cal. 4416 - 521

Released in 1977, the Cal. 4416 with design code 521 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-aad8cb8abb7a]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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