Seiko Cal. 5237 - 431

This Spring Drive model from 1998 features a 41mm Two-Tone case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-cc49609ec43c]

Also known as: Rally, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1998

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