Seiko Cal. 4521 - 957

This Solar model from 1982 features a 37mm Two-Tone case. Powered by the 4521 caliber with 25j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-45582b95cd62]

Also known as: Tuna, Panda

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1982

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