Seiko Cal. 5678 - 957

This Hand-Winding model from 1998 features a 40mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-8e0fcd71d664]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1998

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