Seiko Cal. 5680 - 231

This Hand-Winding model from 1994 features a 40mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-e1bac19e108f]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1994

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