Seiko Cal. 6237 - 678

The 6237-678 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-4cc50d25148b]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1977

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