Seiko Cal. 5658 - 422

This Hand-Winding model from 1991 features a 36mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-7d7fd2c98411]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1991

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