Seiko Cal. 7011 - 661

The Seiko 7011-661 represents an important milestone in Seiko's 1991 lineup. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-4e1a0ce5e4d2]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1991

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