Seiko Cal. 5693 - 851

The Seiko 5693-851 represents an important milestone in Seiko's 1998 lineup. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-89ed7476b1a0]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1998

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