Seiko Cal. 4521 - 536

The Seiko 4521-536 represents an important milestone in Seiko's 1991 lineup. Powered by the 4521 caliber with 17j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-9b4f4eb80e78]

Also known as: UFO, Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1991

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