Seiko Cal. 5681 - 813

This Kinetic model from 1985 features a 40mm Titanium case. It features a Navy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-b43d87373bdb]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1985

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