Seiko 6R35

Specifications

Complications

Known service issues

• The 21,600 bph beat rate makes it more susceptible to positional error than higher-frequency movements
• Power reserve indicator can stick if the watch is stored fully wound for extended periods; wind it down partially before long-term storage
• Hack function is reliable but the setting lever can wear if the crown is repeatedly pulled while the watch is under spring tension; release crown gently
• Parts are globally available through the Seiko service network; repair costs are among the lowest for any Swiss-comparable automatic

Notable in

• Seiko Prospex Diver SRPE35
• Seiko Presage Style 60s SRPG03
• Seiko 5 Sports SKX Sports Style
• Seiko Prospex Alpinist SPB121
• Seiko Presage Cocktail Time SRPE17

References in our catalog using this caliber

• Seiko Prospex 1965 Diver Re-creation SPB143 SPB143J12020–present
• Seiko Prospex 1970 Willard Re-creation SPB153 SPB153J12020–present
• Seiko Prospex Alpinist SPB121 SPB121J12020–present
• Seiko Prospex Sumo SPB103 SPB103J12019–present
• Seiko Prospex 1970 Willard Re-creation SPB413 SPB413J12023–present
• Seiko Presage Sharp Edged SPB169 SPB169J12020–present
• Seiko Presage Prestige SPB095J12019–present
• Seiko Prospex King Seiko SPB291J12023–present
• Seiko Presage Sharp Edged SPB407J12022–present
• Seiko Prospex "Save the Ocean" SPB317 SPB317J12022–present

Buying advice

Practical guides for buying a watch with this caliber on the pre-owned market:

• 10-minute inspection checklist →
• Watch condition grading →
• How pre-owned watch markets work →