Seiko Cal. 3815 - 825

The 3815-825 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3815 caliber with 21j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-077586d95752]

Also known as: Panda, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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