Seiko Cal. 3870 - 163

This Hand-Winding model from 1999 features a 46mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-6d90c582d6a3]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1999

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