Seiko Cal. 3857 - 507

The 3857-507 is a sought-after Solar piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-8c5ead75fb49]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

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