Seiko Cal. 6131 - 406

This Hand-Winding model from 1998 features a 37mm Two-Tone case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6db9d388ca0e]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1998

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