Seiko Cal. 5231 - 971

Released in 1990, the Cal. 5231 with design code 971 was part of Seiko's domestic market collection. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-9e3ddd8cc306]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1990

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