Seiko Cal. 5684 - 816

The Seiko 5684-816 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-2915f2efea27]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1977

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