Seiko Cal. 4511 - 990

The Seiko 4511-990 represents an important milestone in Seiko's 1977 lineup. Powered by the 4511 caliber with 21j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-be0fbe3f6f96]

Also known as: Shogun, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1977

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