Seiko Cal. 5231 - 326

Released in 1997, the Cal. 5231 with design code 326 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-c47a5f623b5b]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1997

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