Seiko Cal. 4416 - 681

The Seiko 4416-681 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-52e77f643448]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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