Seiko Cal. 4521 - 211

This Solar model from 1986 features a 37mm Titanium case. Powered by the 4521 caliber with 20j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-b2f387e09861]

Also known as: Sumo, Goldfeather

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1986

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