Seiko Cal. 5646 - 678

This Quartz model from 1989 features a 41mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-5a7b52e616d4]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1989

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