Seiko Cal. 5638 - 263

This Hand-Winding model from 1998 features a 40mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-17d9677d3f66]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1998

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