Seiko Cal. 6647 - 386

This Hand-Winding model from 1990 features a 45mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-b23de88715f3]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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