Seiko Cal. 7131 - 297

This Automatic model from 1999 features a 40mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-5020c302c718]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1999

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