Seiko Cal. 4551 - 991

This Spring Drive model from 1970 features a 40mm Stainless Steel case. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-a17901f1f470]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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