Seiko Cal. 5216 - 657

This Quartz model from 1975 features a 40mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-4e96a617d6c3]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1975

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