Seiko Cal. 6636 - 393

The 6636-393 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-dadb6f0732e2]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1969

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