Seiko Cal. 6397 - 840

This Hand-Winding model from 1975 features a 45mm Gold-Plated case. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-8f32e7a3fad6]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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