Seiko Cal. 5257 - 763

The 5257-763 is a sought-after Solar piece from Seiko's golden era. Powered by the 5257 caliber with 32j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-a3fe83d0ce7d]

Also known as: Bellmatic, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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