Seiko Cal. 5231 - 370

Released in 1988, the Cal. 5231 with design code 370 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-9ff508cbbfd7]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1988

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