Seiko Cal. 6351 - 991

The 6351-991 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-e9fe8ab9d091]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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