Seiko Cal. 5231 - 147

This Automatic model from 1994 features a 36mm Titanium case. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-3d62c05ff4b5]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1994

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