Seiko Cal. 5661 - 951

The Seiko 5661-951 represents an important milestone in Seiko's 1987 lineup. It features a Navy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-3429dd15d924]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1987

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