Seiko Cal. 6364 - 727

The 6364-727 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-85346e81d61b]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1987

Related Models

• Seiko 6646-520
• Seiko 4570-364
• Seiko 6324-143
• Seiko 5287-175
• Seiko 5661-186
• Seiko 3844-485
• Seiko 7139-981
• Seiko 5622-949
• Seiko 0780-340
• Seiko 0741-634
• Seiko 7172-798
• Seiko 7093-330